This is the name of the planet that Esper Grasshoppers originated from, or at least, this is what the majority of them all claim (since most of them live there). ¹

A Civilization That is So Old Its Races and Species Have Evolved Alongside It.

First there was almalgamated an all-comprehensive system of a bureaucracy. It was to be planet wide. After the great resistance and many deaths involved in the huge efforts both for and against it, it was. Then the beings on ThreeEerht figured that it was just so very handy in spite of the large scale ineptitudes that, "what the heck, we may as well work with it."

Thus Was Their Ancient Motto Born!

It got very boring rather fast with all the rules already in place and eventually through the millenia, finding ways around them became dull too. When the cities became too dense, The people on ThreeEerht consciously spaced themselves apart from one another... similar to the Earth Concept of "personal space", except it was hardly a bubble. Their idea of the proper amount of physical space apart from eachother could best be described as a "space box." With nothing much else better to do, and the incredible boredom that life only within in front of one's nose afforded.. the ThreeEerhtians began to work at developing their higher mental faculties. Nothing actually practical or anything anyone might daresay to be "useful," but it was psychic abilities such as telekinesis to pass each other objects without having to interrupt what ever it was that they were doing at the moment. That, and telepathy to bore into each other's minds. Yes, that became grating overtime as well, and there was a novel solution to this problem they had developed as well.

Hammerball... (It's a lot like croquet except with the checking from hockey).

Enter into the complex outdoor arena type sport of hammerball. A whole bunch of people form each side and chase a little ball down a field with hammers. No, the object of the game isn't to hit players on the opposing teams over the head... though that does happen fairly often on occasion and is very much an essential part to the game.

Hammerball is the ancient cultural pastime on ThreeEerht² though it has been exported to a few other systems due to increasing popularity among many sentients (besides that playing against rocks is stupid). It was originally developed as an early solution to the Esper problem; you see no one really liked having their minds read. As the sport was honed over thousands of years in the background of ThreeEerhtian civilization and as progress loomed on forwards (for the most part), a peculiar selection pressure manifested itself. Those ThreeEerhtians who could jump, did. Those who didn't... did not.

The Quick and the dead. Well, sort of.

The populations shifted in increasing segments so that eventually most of the ThreeEerhtians are what they tend to be encountered as today: Thoroughly thickskulled and inventive folks who although able to leap great heights without the aide of pole-vaulting, are somewhat down to Earth, or should it be said (in place of such) terra firma. They are a rather peaceable lot outside of the whole hitting each other over the heads with hammers part.